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TPS40007

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Controlador reductor síncrono de 2.25 V-5.5 V, 300 kHz, fuente/disipador, funcionamiento de prepolar

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TPS40007

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Detalles del producto

Rating Catalog Iout (max) (A) 15 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 4 Vout (min) (V) 0.7 Control mode Voltage mode Features Enable pin, Synchronous Rectification Duty cycle (max) (%) 94 Iq (typ) (A) 0.0015 Number of phases 1 Operating temperature range (°C) -40 to 85
Rating Catalog Iout (max) (A) 15 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 4 Vout (min) (V) 0.7 Control mode Voltage mode Features Enable pin, Synchronous Rectification Duty cycle (max) (%) 94 Iq (typ) (A) 0.0015 Number of phases 1 Operating temperature range (°C) -40 to 85
HVSSOP (DGQ) 10 14.7 mm² (3 mm × 4.9 mm)
  • Operating Input Voltage 2.25 V to 5.5 V
  • Output Voltage as Low as 0.7 V
  • 1% Internal 0.7 V Reference
  • Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
  • Externally Adjustable Soft-Start and Overcurrent Limit
  • Fixed-Frequency Voltage-Mode Control
    • TPS40007, 300 kHz
    • TPS40009, 600 kHz
  • Source/Sink with VOUT Prebias
  • 10-Lead MSOP PowerPad™ Package for Higher Performance
  • Thermal Shutdown
  • Internal Boostrap Diode
  • APPLICATIONS
    • Networking Equipment
    • Telecom Equipment
    • Base Stations
    • Servers
    • DSP Power
    • Power Modules

PowerPAD and Predictive Gate Drive are trademarks of Texas Instruments Incorporated.
  • Operating Input Voltage 2.25 V to 5.5 V
  • Output Voltage as Low as 0.7 V
  • 1% Internal 0.7 V Reference
  • Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
  • Externally Adjustable Soft-Start and Overcurrent Limit
  • Fixed-Frequency Voltage-Mode Control
    • TPS40007, 300 kHz
    • TPS40009, 600 kHz
  • Source/Sink with VOUT Prebias
  • 10-Lead MSOP PowerPad™ Package for Higher Performance
  • Thermal Shutdown
  • Internal Boostrap Diode
  • APPLICATIONS
    • Networking Equipment
    • Telecom Equipment
    • Base Stations
    • Servers
    • DSP Power
    • Power Modules

PowerPAD and Predictive Gate Drive are trademarks of Texas Instruments Incorporated.

The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive™ technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.

The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor connected to the SS/SD pin. The SS/SD pin is also used for shutdown.

The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive™ technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.

The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor connected to the SS/SD pin. The SS/SD pin is also used for shutdown.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LOW INPUT BUCK CONTROLLER, TPS40007/9 datasheet (Rev. B) 8/02/2005
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Guía de selección DC/DC Buck Controller Solutions Selection Guide 6/02/2018
Nota sobre la aplicación Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co 11/07/2014

Diseño y desarrollo

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Placa de evaluación

TPS40007EVM-001 — Módulo de evaluación TPS40007EVM-001

The TPS40007 is a voltage-mode, synchronous buck PWM controller that uses TI's proprietary Predictive Gate Drive™ technology to wring maximum efficiency from step-down converters. This controller provides a bootstrap circuit to allow the use of an N-channel MOSFET as the topside buck switch (...)
Guía del usuario: PDF
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Modelo de simulación

TPS40007 TINA-TI Average Reference Design (Rev. A)

SLVM034 (63 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

TPS40007 TINA-TI Average Spice Model (Rev. A)

SLVM035 (4 KB) - Modelo TINA-TI Spice
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Modelo de simulación

TPS40007 TINA-TI Start-up Reference Design

SLIM019.TSC (59 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

TPS40007 TINA-TI Steady State Reference Design

SLIM020.TSC (59 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

TPS40007 TINA-TI Transient Spice Model

SLIM021.ZIP (27 KB) - Modelo TINA-TI Spice
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Modelo de simulación

TPS40007 Unencrypted PSpice Model Package (Rev. B)

SLVC168B.ZIP (329 KB) - Modelo PSpice
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Herramienta de cálculo

SLUC263 — Type III Compensation Calculation Tool

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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HVSSOP (DGQ) 10 Ultra Librarian
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Soporte y capacitación

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